L&A Engineering tube-in-shell heat exchanger bundles, (7) stainless steel housings measuring 9" diameter x 48" long, each with (252) 1/4" tubes, estimated at 250 square feet of surface area per bundle/housing, 1.5" side ports, missing the end fittings, with (12) end clamps, no jacket pressure ratings, housings have the following serial numbers: 2813, 2815, 2816, 2818, 2822, 2826 and 2827.